ENUMERATION OF MOLDS AND YEASTS IN DRIED MILK AND ICE-CREAM PRODUCTS

Document Type : Research article

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Abstract

A total of 71 Samples representing dried whole and skim milk, dried ice-cream mix with chocolate, orange, strawberry and vanillia were collected from Sakha processing dairy plant and examined for incidence of molds and yeasts. The mean colony count of molds and yeasts/g. of the examined samples were 9.41+1.1 X 10, 11.45+ 1.33 102, 11.0+1.49 X 10 , 13.7+0.56 x 102, 12.38+1.3 X 102 and 4.23+0.59 x 102, respectively. Dried ice-cream mix with orange reveal higher count more than other dried milk products, while lower count was observed in dried ice-cream with vanillia. All dried milk and ice-cream products were heavily contaminated with yeasts. Lower count also observed in dried ice-cream mix with vanillia. Molds isolated were belonged to six genera, Aspergillus, Penicillium, Mucor. Cladosporium. Rhizopus and Absidia spps. Identifi cation of the isolated Aspergillus revealed that A.niger, A.flavus and Afumigatus could be isolated in different percentages. The public health importance of the existing fungi as well as suggested measures for improving the quality of the dried products are disc ussed.

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